My old toro mower model #20043 that is 21 years old i have a problem and i need some expert advice. When i pull the cord on my recoiler it stops and wont pull its stuck. Now i had my friend come over and replace the recoiler with a brand new one so its not the recoiler and when we took off the old one that one worked too. When we had the recoiler off it was full of dirt so i blew it off with an air gun and sprayed alot of penetrating oil onto the top where the recoiler goes to lube it up. I figured the engine had seized so i took out the spark plug and squirted alot of penetrating oil into the spark plug hole and left it for 4-5 hours now when i try to move the blade it spins freely with no problem, but when i try to pull the cord its frozen and stuck it wont move. Do you think my engine has died? Do you think its worth to take it to a fix-it place to get it checked out to see if they can get the top part unfrozen? I dont want to spend alot of money fixing this but ive put alot into it already and dont want to give up on it just yet. Any comments or suggestions would be greatly appreciated. Thank you.